Investigating the high energy QCD approaches for prompt photon production at the LHC

Abstract

We investigate the rapidity and transverse momentum distributions of the prompt photon production at the CERN LHC energies considering the current perturbative QCD approaches for this scattering process. Namely, we compare the predictions from the usual NLO pQCD calculations to the the color dipole formalism, using distinct dipole cross sections. Special attention is paid to parton saturation models at high energies, which are expected to be important at the forward rapidities in pp collisions at the LHC.

arXiv commentContribution to the proceedings of the 3rd International Conference on Hard and Electro-Magnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2008), 8-14 June 2008, Illa da Toxa (Galicia-Spain). Talk presented by M.V.T. Machado

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Cited by in corpus (12)

• Prompt photon production and photon-hadron correlations at RHIC and the LHC from the Color Glass Condensate
• Sensitivity of isolated photon production at TeV hadron colliders to the gluon distribution in the proton
• Semi-inclusive photon-hadron production in pp and pA collisions at RHIC and LHC
• Photon-jet ridge at RHIC and the LHC
• Diphoton production in high-energy p+A collisions
• A study on the low mass Drell-Yan production at the CERN LHC within the dipole formalism
• The color dipole picture for prompt photon production in $pp$ and $pPb$ collisions at the CERN-LHC
• Measurement of isolated photon-hadron correlations in $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV pp and p-Pb collisions
• Prompt photon production in high-energy $pA$ collisions at forward rapidity
• Isolated photon production in $pp$ collisions at forward rapidities and high multiplicity events
• Photon plus heavy quark production in high energy collisions within the target rest frame formalism
• Momentum space saturation model for deep inelastic scattering and single inclusive hadron production